Gantry type multi-head milling and grinding compound machining center and its operation method

Abstract

The invention relates to a gantry type multi-head milling and grinding composite machining center. A pair of gantry posts is arranged, a beam is arranged between the gantry posts, one side face of the beam is connected with a grinding head mechanism and a milling head mechanism through an X-Y working table in a linkage mode, the grinding head mechanism and the milling head mechanism are perpendicular to the working table between the gantry posts, and a lead screw oil cylinder switching driving mechanism is arranged in a main engine base at the bottom of the working table; a working table driving oil cylinder system is used in cooperation with the grinding head mechanism, and a working table lead screw driving system is used in cooperation with the milling head mechanism. According to the gantry type multi-head milling and grinding composite machining center, by means of ingenious design of the mechanical structure, the grinding head mechanism and the milling head mechanism can independently conduct machining on the machining center, the dual-purpose function is achieved, the requirement for changing machines for machining in existing machining is avoided, the time for clamping a workpiece at a time is saved, product machining accuracy is improved, labor cost is saved, it is unnecessary to use two pieces of equipment for machining, and factory space is saved.

Description

technical field [0001] The invention relates to the field of mechanical processing, in particular to a gantry-type multi-head milling-grinding compound machining center and an operating method thereof. Background technique [0002] At present, in the processing of mechanical parts and molds, processes such as milling, drilling, boring, and grinding are generally required. The traditional method is to mill first and then grind, which requires at least two machines to complete, because milling machines and machining centers need to use screw rods to drive the workbench to ensure accurate position, and the speed can be controlled to be very slow. Generally, the workbench runs at a speed of 0.1m-2m / min, with servo motor driven by electronic handwheel, it can be precisely positioned, and the system can be used to complete automatic processing, etc.; while the surface grinder table needs fast reciprocating motion, and its running speed is 5m-30m / min. Driven by an oil cylinder, it...

AI Technical Summary

Problems solved by technology

If the screw rod is used to drive the grinding machine table, the smoothness and flatness will not be achieved, because the screw rod will jump when it rotates, the reversing time will be long, and the service life of frequent reciprocating high-speed motion will be greatly shortened.

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